package com.ruoyi.framework.web.service;

import com.alibaba.fastjson.JSONObject;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.*;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.utils.alicloud.SmsUtil;
import com.ruoyi.common.utils.ip.IpUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.framework.security.context.AuthenticationContextHolder;
import com.ruoyi.framework.security.token.SmsCodeAuthenticationToken;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;

import java.util.Map;
import java.util.Random;
import java.util.concurrent.TimeUnit;

/**
 * 登录校验方法
 * 
 * @author ruoyi
 */
@Component
public class SysLoginService
{
    @Autowired
    private TokenService tokenService;

//    @Resource
//    private AuthenticationManager authenticationManager;

    @Autowired
    private RedisCache redisCache;
    
    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysConfigService configService;

    @Autowired
    private SysPermissionService permissionService;


    private final AuthenticationManager authenticationManager;

    public SysLoginService(@Qualifier("authenticationManager") AuthenticationManager authenticationManager) {
        this.authenticationManager = authenticationManager;
    }


    /**
     * 登录验证
     * 
     * @param username 用户名
     * @param password 密码
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid)
    {
        // 验证码校验
        validateCaptcha(username, code, uuid);
        // 登录前置校验
        loginPreCheck(username, password);
        // 用户验证
        Authentication authentication = null;
        try
        {
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(username, password);
            AuthenticationContextHolder.setContext(authenticationToken);
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager.authenticate(authenticationToken);
        }
        catch (Exception e)
        {
            if (e instanceof BadCredentialsException)
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
                throw new UserPasswordNotMatchException();
            }
            else
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, e.getMessage()));
                throw new ServiceException(e.getMessage());
            }
        }
        finally
        {
            AuthenticationContextHolder.clearContext();
        }
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }

    /**
     * 校验验证码
     * 
     * @param username 用户名
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid)
    {
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled)
        {
            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
            String captcha = redisCache.getCacheObject(verifyKey);
            if (captcha == null)
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
                throw new CaptchaExpireException();
            }
            redisCache.deleteObject(verifyKey);
            if (!code.equalsIgnoreCase(captcha))
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
                throw new CaptchaException();
            }
        }
    }

    /**
     * 登录前置校验
     * @param username 用户名
     * @param password 用户密码
     */
    public void loginPreCheck(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password))
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // IP黑名单校验
        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr()))
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
            throw new BlackListException();
        }
    }

    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public void recordLoginInfo(Long userId)
    {
        userService.updateLoginInfo(userId, IpUtils.getIpAddr(), DateUtils.getNowDate());
    }


    /**
     * 发送手机验证码
     * @param phone
     */
    public Integer sendSms(String phone) {
        String code = generateSmsCode();
        try {
            // 调用阿里云短信服务，发送短信
            Map<String, Object> sendSmsResponseMap = SmsUtil.sendMsg(phone, code);
            // 获取响应体状态码和Body状态码
            Integer statusCode = (Integer)sendSmsResponseMap.get("statusCode");
            String bodyCode = (String) sendSmsResponseMap.get("bodyCode");
            // 判断响应码
            if (statusCode != null && bodyCode != null && statusCode.equals(200) && bodyCode.equals("OK")) {
                // 成功发送验证码，将验证码存储在 redis 中.
                redisCache.setCacheObject(CacheConstants.SMS_CAPTCHA_CODE_KEY + phone, code, 180, TimeUnit.SECONDS);
                return 1;
            } else {
                return -1;
            }

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 随机生成手机验证码
     *
     * @return
     */
    public String generateSmsCode() {
        Random random = new Random();
        return String.format("%06d", random.nextInt(999999));
    }

    /**
     * 手机号登录验证*
     * @param mobile
     * @return
     */
    public String smsLogin(String mobile,String code){
        // 先通过mobile查询用户是否存在
        SysUser user = userService.selectUserByPhonenumber(mobile);
        if (user == null) {
            throw new ServiceException("手机号尚未注册,请联系管理员！",500);
        }
        // 2.用户存在, 用户验证
        Authentication authentication = null;
        try
        {
            // 使用自定义的toke鉴权器构造一个没有鉴权的token
            SmsCodeAuthenticationToken authenticationToken = new SmsCodeAuthenticationToken(mobile,code);
            AuthenticationContextHolder.setContext(authenticationToken);
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager.authenticate(authenticationToken);
        }
        catch (Exception e)
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(mobile, Constants.LOGIN_FAIL, e.getMessage()));
        }
        finally
        {
            AuthenticationContextHolder.clearContext();
        }
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(mobile, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }

    /**
     * 短信验证码校验
     * @param phonenumber
     * @param code
     */
    public Boolean validateSmsCode(String phonenumber, String code) {
        String smsCode = redisCache.getCacheObject(CacheConstants.SMS_CAPTCHA_CODE_KEY + phonenumber);
        if (smsCode == null || !smsCode.equals(code)) {
            return false;
        }
        return true;
    }

    /**
     * 微信登录
     *
     * @param decryptResult 登录凭证 只能用一次
     * @return
     */
    public String wxLogin(String decryptResult){
        //字符串转json
        JSONObject jsonObject = JSONObject.parseObject(decryptResult);
        System.out.println(jsonObject);
        //        String unionid = jsonObject.getString("unionid");
        String openId = jsonObject.getString("openId");

        String phone = jsonObject.getString("phoneNumber");

        SysUser user = userService.selectUserByPhonenumber(phone);
        if (user == null) {
            throw new ServiceException("手机号尚未注册,请联系管理员！",500);
        }

        LoginUser loginUser = new LoginUser(user.getUserId(), user.getDeptId(), user, permissionService.getMenuPermission(user));
        // 生成token
        return tokenService.createToken(loginUser);
    }

}
